<?php

/**
 * Project:     SmartyPaginate: Pagination for the Smarty Template Engine
 * File:        function.paginate_prev.php
 * Author:      Monte Ohrt <monte at newdigitalgroup dot com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * @link http://www.phpinsider.com/php/code/SmartyPaginate/
 * @copyright 2001-2005 New Digital Group, Inc.
 * @author Monte Ohrt <monte at newdigitalgroup dot com>
 * @package SmartyPaginate
 * @version 1.6-dev
 */

function smarty_function_paginate_prev($params, &$smarty)
{
    $_id = 'default';
    $_attrs = array();

    if (!class_exists('SmartyPaginate'))
    {
        $smarty->trigger_error("paginate_prev: missing SmartyPaginate class");
        return;
    }
    if (!isset($_SESSION['SmartyPaginate']))
    {
        $smarty->trigger_error("paginate_prev: SmartyPaginate is not initialized, use connect() first");
        return;
    }

    foreach($params as $_key => $_val)
    {
        switch ($_key)
        {
            case 'id':
                if (!SmartyPaginate::isConnected($_val))
                {
                    $smarty->trigger_error("paginate_prev: unknown id '$_val'");
                    return;
                }
                $_id = $_val;
                break;
            default:
                $_attrs[] = $_key . '="' . $_val . '"';
                break;
        }
    }

    if (SmartyPaginate::getTotal($_id) === false)
    {
        $smarty->trigger_error("paginate_prev: total was not set");
        return;
    }
    // $_url = SmartyPaginate::getURL($_id);
    // print_r($_SERVER);
    $_url = $_SERVER['REQUEST_URI'];
    $url = explode("?", $_url);
    $aurl = $url[0];
    $url = $url[1];
    $url = explode("&", $url);
    $_url = "";
    $i = 0;
    foreach($url as $uri)
    {
        if (!strstr($uri, "next"))
        {
            if ($i > 0)
            {
                $_url .= "&" . $uri;
            }
            else
            {
                $_url .= $uri;
            }
        }
        $i = $i + 1;
    }
    $_url = $aurl . "?" . $_url;

    $_attrs = !empty($_attrs) ? ' ' . implode(' ', $_attrs) : '';

    if (($_item = SmartyPaginate::_getPrevPageItem($_id)) !== false)
    {
        $_show = true;
        $_text = isset($params['text']) ? $params['text'] : SmartyPaginate::getPrevText($_id);
        $_url .= (strpos($_url, '?') === false) ? '?' : '&';
        $_url .= SmartyPaginate::getUrlVar($_id) . '=' . $_item;
    }
    else
    {
        $_show = false;
    }

    //return $_show ? '<a class = "last" href="' . str_replace('&', '&amp;', $_url) . '"' . $_attrs . '>' . $_text . '</a>' : '';
    return $_show ? '<a href="' . str_replace('&', '&amp;', $_url) . '"' . $_attrs . '><img src = "templates/'. $smarty->tname . '/images/paging_last.png" alt = "" />' : '';
}

?>
